摘要
一、概况1961年秋冬,安徽省颍上县发生流行性出血热(肾型)。在62万人口中发现1,314名病例,全年发病率达2.11‰。疫情之重,范围之广,在医学文献中尚未见报道。颍上县临近淮河,病例集中在沿淮河的洼地。
A serious epidemic of hemorrhagic fever with renal syndrome occurred in In-shan County of Anhui Province in 1961.The incidence was most prevalent in Swampy areas,the lower the land,the higher the incidence.Hank correlation test of incidence rate with the altitude of terrain among 24 productive brigades showed a negative significant correlation(P<0.001).Of the trapped rodents,90%were Apodevrws agra-rius,the density of trap-night being 12%.While Trombiculid mites were rarely observed on rodents,the average index of gamasoid mites on rodents was 6.1.The percentages of Hemolaelaps glasgowi,Laelaps pavlovskyi and Eulaelaps stabularis were 29.8%,58.9%and 6.1%respectively on the rodents and 69.7%,7.0%and 19.9%in their holes.The density of Ap.agragrius and index of gamasoid mites seemed higher in the swampy areas.The annual incidence of the disease rose with an increase of density of Ap.agrarians and fell with a decrease of it(r,=0.9286,n=6,P<0.05).However,the density of Ap.agirarius depended on the amount of rainfall.In the years with little rainfall,when the swampy areas were drained and a good harvest was gathered in,Ap.Agrarius increased and epidemic of the disease occurred.Before liberation,these swampy areas were flooded almost every year.Since 1968,the Swampy areas have to a great extent been cultivated and as there was little rainfall in 1961,the beat harvests were gathered in that year,and a serious epidemic occurred.
出处
《上海医科大学学报》
1980年第3期161-166,共6页
Journal of Fudan University(Medical Science)
